o Update content:
- add more l10n document:
bn_BD.ISO10646-1 Bengali (or Bangla)
da_DK.ISO8859-1 Danish (Denmark)
hu_HU.ISO8859-2 Hungarian
mn_MN.UTF-8 Mongolian (UTF-8 encoding)
nl_NL.ISO8859-1 Dutch (Netherlands)
pl_PL.ISO8859-2 Polish (Poland)
pt_BR.ISO8859-1 Portuguese (Brazil)
sr_YU.ISO8859-2 Serbian (Serbia)
tr_TR.ISO8859-9 Turkish (Turkey)
- Please feel free to patch them if there's something wrong or typo.